Hinge-socket cutter.



I JOSEPH saints, or LAWRENCE, MASSACHUSETTS.

HINGE-SOCKET CUTTER.

Specification of Letters Patent.

Patented Feb. 9, 1909.

Application led July 17, 1908. Serial No. 443,979.

To all whom 'it may concern:

Be it known that I, JOSEPH SALoIs, of Lawrence, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Hinge-Socket Cutters, of which the following is a specication.

This invention has for its object to provide an implement for the use of carpenters in cutting hinge Vsockets or seats in door jambs and in the inner edges of doors, the cutter of my invention beingl intended to form three edgesof a socket or seat adapted to receive a door hinge leaf.

The invention consists in the improved implement which I will Vnow proceed to describe and claim.

Of the accompanying drawings forming a part of this specification, Figure 1 represents an end view of a hinge socket cutter embodying my invention. Fig. 2 represents a side view of the same. Fig. 3 represents a section on line 3 3 of Fig. 2. Fig. 4 represents a perspective view of a portion of the cutter.

The same reference characters indicate the same parts in all the figures. f

My improved hinge socket cutter comprises a box-shapedv holder adapted to sup-V port two L-shaped knives 12, 12 in given, predetermined relative positions, each knife having an L-shaped cutting edge 13, the two cutting edges being relatively arranged so that two of their arms are in alinement with each other, and adapted to form the longer edge of a hinge leaf socket, the other two arms being yat right angles with the alined arms, and adapted to cut the ends of the socket. The box-shaped holder is here shown as composed oftwosections 14, 14, which ymeet to form an open frame or boX, as shown in Fig. 1, and are adjustably connected, as hereinafter described, so that the said sections 14 and the knives carried thereby may be adjusted toward and from each other to vary the length of the hinge socket, it being understood that'when the holder is elongated to separate the alined arms of the knives, the cut formed by said arms will be interrupted, oand may be completed by a subsequent operation with a chisel or other instrument. Each knife 12 is movable in the section 14with which it is connected, so that its cutting edge may be projected 'from the front end of the holder, each knife being guided by two of the sides of the section 14 in which it is 'of a door, or

section by means of a bolt 16 and a thumb nut 17. Each knife is normally retracted so that its cutting edge is flush with the mouth of the holder, as indicated in Fig. 4, by means of a spring 18 bearing at one end on the inner end of a socket formed in a boss 19, and at its other end on a pin or stud 20 attached to the knife and projecting into said socket. Provision is thus made for guarding the cutting edges of the knives whenthey are not in use. Each knife is provided with a rearwardly projecting shank 21 adapted to be struck by a mallet to drive forward or project the knife and cause its cutting action.

The holder is provided with a gage ada-pted to engage either the upper or lower end ofa door casing, to locate the hinge socket at the desired distance from said end, the gage being here shown as adm justabl'e in length and composed of a rod 22 Screw-threaded at its inner end, and detachably engaged with a screw-threaded Socket 23 formed for its reception in the boss 19, and a rod 24 adjustably secured by a clamp 25 to the rod 22, and provided at its outer end with an arm 26 adapted to bear either against` an end of the door casing, or an end ofthe door. In cutting hinge seats near the ends of the door casing and door, the gage employed will be relatively short. A longer gage may be employed for use when the cutter is employed to cut the middle socket of a three-hinge door, the end gages being used interchangeably, and each gage being adapted to be applied either to the upper end or the lower end of the holder.

27, 27 represent Side gages detachably secured to one side of the holder by means of thumb screws 2S, said gages having lips projecting forward from the front end of the holder, and adapted to bear against one Side of a door 29, to determine the distance between the edge of the Socket formed by the alined arms of the cutters and the edge of one side of the door. Gages 27 of dierent thicknesses will be provided, the gages being used interchangeably.

As before stated, the sections 14 of the holder are here shown as formed in separate parts, the holder being adapted to be elongated to vary the length of the hinge socket. The means here shown for adjustably connecting the sections 14 and holding them at any desired adjustment include a screwthreaded rod 8O having` a head 3l which hears against one end of a boss formed on one end of the section le, said hess having an orii'ice which is sinooth or not threaded. The rod 30 passes through said orii'ice, and its screw-thread is engaged With an internal thread :termed on a hess 33 on the other scction le. On the opposite side et the holderl is a connecting plate having' slots 35 through which pass tliuinli screws 36, ivliieli detachably secure the plate 34 to the section 11i.

in Figs. l and the holder is shown as adjusted to 'forni a socket of ininiinuni length, the sections le and knives l2 abutting` against each ether. 'Tlieii it is desired to increase the length oi the holder, the tluiinh scre. 36 are loosened and 'the adjusting' stareiy is rotated to nieve the sections l@ aoart. ii/Then the desired adjustment has heen eli'ected, the tliunih screws 3G are tightened, tlius holding' the sections in the desired adj ustn'ient.

in cutting' a hinge socket in the inner of a door, the operator adjusts the end 26 and places it upon one end et the door with the outer end et the holder hearing` against the inner edge ot' the door, and the side gages 27 hearing against one side of the doen rEhe knives are then projected by lows or" a. inallet upon the slianks 2l until tliei7 have entered the door to the desired depth, and have thus t'orined three sides o't' a hinge socket. ln cutting a socket in the doei' jaino or caline', the operation is practically the saine, the gage 2G beine; brought inte Contact With one Vend of the casing and turned to project in the opposite direction troni that slioivn iii Fig. 2.

It is obvious that the cutter can be used in the manner described at either end portion of the door oi' door casing. viii/Then the cutter is to be used for cutting seats inidivay between the ends or' the door or casing', the longer end gage ivill he employed.

claiin:

edge

l. A hine'e socket cutter coinoi'isine' a hoxb l D shaped holder' having` internal guide brackets, and tivo L-shaped knives, each inovahle in the holder and guided by tivo sides et the.

holder, and b v one ol' said brackets, the knives being adapted te he projected lioni the holder, and provided with rearwardly projecting' drivin slianks.

ii hinge socket cutter comprising' a boxsliuped holder, tivo ..sliaped kirves uiovahle therein and adapted to be projected :li'oin the hold each knife having! :i i'eniii'ardly pio iectine' driving shank :ind an eloiigi'ated entre rod sdiustahl;7 and detaclialilv secured te glie holder and adapted to engage either :i door i:iinh oi' a door end.

3. A hinge .socket cutter comprisinga hex- `iisd holder having internal ujiiide ln'ackl, tivo i-sliaiiied knives, each inoi'zilile in le holder and guided liv tivo sides et the rolde; sind by one ot5 said lnacke-l-, and sgrings engaged with the holder and knives and adaited ilie knives to guard i 4.3 I 1 1 incii cuit.' i kn being)` :unipi-- ed to he 3'. y al ein the holder :uid pro vie-ed ii'itli i'eai'ii'ai'dli' in 'ojectiiie' driving;

st. fr hinge .socket cutter conipi'isine,` tivo knives having; ..slianed cutting edges adapted te collecti'veli7 cut three edges ot a socket, of tivo sections adapted a holder lcoinpo to support nd guide the l-nives in their 'pie determined relative positions, and ine-ans for holding the sections and knives at different distances Lpari' te determine tlie lengte et the socket.

A, hinge socket cutter conipi'isine` a he shaped holder composed oi" two sections, each having' two internal guiding' iaces und an internal guiding liriicket, n cans to: adjiistahly connecting' said sections, and tivo in-sliaped knives guided by the said internal faces and brackets, and having' L-sliaped cutting' edges adapted to he projected li'oni the holder.

ln testinioiibT whereof I have aliixcd inv signature. in presence olf tivo witnesses.

JOSEPH SALOIS. 

